Finding the Fourth Proportional to 18,664,455.60, 27,996,683.40 and 15,475,809.60
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Solution
The fourth proportional to 18,664,455.60, 27,996,683.40 and 15,475,809.60 is: 23,213,714.40
Step by Step Solution
- Step 1: Write the proportion equation
18,664,455.60 : 27,996,683.40 = 15,475,809.60 : x - Step 2: Convert to fraction form
18,664,455.60/27,996,683.40 = 15,475,809.60/x - Step 3: Cross multiply
18,664,455.60x = 27,996,683.40 × 15,475,809.60 - Step 4: Simplify right side
18,664,455.60x = 433,271,341,729,880.62 - Step 5: Solve for x
x = 433,271,341,729,880.62/18,664,455.60 - Step 6: Final answer
x = 23,213,714.40
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.